CONCERN, Inc. (Consultancy, Organization, Communications, Education & Research Network). (1992). Sangguniang kabataan primer: Book I-. Mary Jo Educational Supply.
Style de citation Chicago (17e éd.)CONCERN, Inc. (Consultancy, Organization, Communications, Education & Research Network). Sangguniang Kabataan Primer: Book I-. Manila: Mary Jo Educational Supply, 1992.
Style de citation MLA (9e éd.)CONCERN, Inc. (Consultancy, Organization, Communications, Education & Research Network). Sangguniang Kabataan Primer: Book I-. Mary Jo Educational Supply, 1992.
Attention : ces citations peuvent ne pas être correctes à 100%.